Supported Release 3.3.2

Summary
This is a supported release. It fixes a problem with updating passwords
on postgresql.org distributed versions of PostgreSQL.

Bugfixes
- Correct psql path when setting password on custom versions.
- Documentation updates
- Test updates

Known Bugs
* SLES is not supported.
Merge pull request #382 from hunner/release_3.3.2

Supported Release 3.3.2